How is the human immunodeficiency virus (hiv) transmitted? apex?

HIV can be transmitted only via body fluids like blood, semen, pre-seminal fluid, rectal fluids, vaginal fluids, and breast milk, which means that people usually get or transmit HIV through sexual behaviours and use of the needle. For HIV infection, these fluids must come in direct contact with a mucous membrane or damaged tissue. Another way is to be directly injected into the bloodstream (from a needle for example).

Hydrosphere is the correct answer

He should put sand around the spill in order to contain it so that it won't spread